Machine for setting the edge joints of veneer strips.



- P. nEcKow. y MACHINE FOR' SETTING THE EDGE lOlNTS 0F VENEER STRIPS.

APILICATION FILED DEC. 3,19l7.

@OQO

miur. mtcxow, or entiendo, ILLINIs.

MACHINE Fort snm-ING 'rmt EDGE Jon'fi'fs on!" VENERE STRIPS.

Patented Sept. 24, 1918.

Application led December 3, 1917. Serial No. 205,227.

To all whom t may concern: I l

13e itknownthat I, PAUL Rccnow, a oltrzen of the United- States,residing at (1111-. cago, in the county of Cook and State or Illinois,have invented a certain new and 'useful mproven'ient in Machines forSetting the Edge Joints of Veneer Strip-s, of which the; fol-lowing is aspecification. A

My invention relates to a machine for setting the edge joints' of veneerstrips so that the edges of said stri-ps may be glued to gether withoutleaving open spaces between thel'n. My machine consists essentially of abase supporting a table comprising a plurality of section-s movablerelatively to each other and suitable clamping devices for holdingstrips of veneer upon the sections of the table so that the said stripsof veneer are in substantially the same plane. My machine also containsdevices for movin-'g the sections relatively to each other` tobring theedges of thestrips of' veneer closely into enga-gement with each other'.`I, also provide in my machine, clamping strips for engagf ing the edgelportions of the strips of veneer to hold them in:l alinemen-t with eachother, thusv facilitatingthe lmakin ofclose Joints between them. I .alsofindg it desirable to supply the sections of the table with rough enedsurfaces affording' a relatively'high degree of frictiona'l engagementWith the strips of veneer, as a resulty of which movement of the tablesections as described posi-tively moves the strips of veneer intoengagement with each other; i

My invention will best be understood by reference to the accompanyingdrawlngs showing a preferred embodiment thereof, in which- Figure 1 is aplan view ofl my machine, t

Fig. 2 is a side elevation of the machine shown in' Fil-g1, l l

Fig, 3 is a longitudinal sectionalY View of the parts shown in Fig?J 1,taken along the 1111@ 2r- 3,

Fig. 4 is transverse sectional View' of th parte shown in Fig. 1, tajkenalongl the line 4-1 F 5 is a, detail view of one of the clamping. stripsremovedfrom the machine, this View being ona reduced scale,

Fig. 6isa det'ailyiew of portions of tfwo strips ofi veneerl after beingremoved from the machine, and

consists of a base 10 upon which there are mounted' table sections 11,12and 13, these sections extendi longitudinally of the machine. The mid lesection 12 is rig-idly sei cured to a longitudinal bar 14, which in turnis rigidly secured to the base 10. The sections 11 and 13 have rigidlysecured to their under surface similar bars 15 and 16, which however'are not secured to the base. The bars 15 and 16 have secured to themtransverse bars 17 and 18 respectively, which are also freedfrom thebase, and extend nnder the edges of the section 12, thus servi-ng toprever-,1t the-,seetionsll and 13 fromf tipping out of the plane of thesection 12. The bars 14 and 16 are connected together by transverselyextending'serews 19,- whch, es shown for one of said screws, extendthrough suitable nuts 20 rigidly ,held in piace again-st the bar 14 by abloeli 21. Each of these screws isl provided at the outer edge of thebar 16 with a groove 22 engaging a slot i-n a retaining plate 23 carriedby the bar 16, asa result of which when the screws 19 are turned by thehandles 24 rigidly secured to the outer ends of seid screws the bar 16and parts carried thereby are moved toward or away from; the bar 14`-and the parts carried therebyy depending upon the direction of rotationof said screws. The bar 15 issimilarly secured to the bar 14 by screws25 which serve in asimilar manner to move the section 11 toward or awayfrom' the section 12.01F the tribale,A u n y he sections 11, 1-2 and 13-of the table are so supported by and disposed upon the base l 10 thattheir surfaces are iny substantially the same plane, and over thesetable sections clam ing plates 26,. 27 and 28 respectively are isposedfor securely holding strips of veneer 29, 30and' 31 res ectively againstthe supporting surfaces ol the table' sections. The table Sectio and theclamping plates may be` of any Adesired width and length to properlyhandle the strips of veneer to be' fastened together and' in any eventthe clampingv plate 28 from the bar 16.

the same, it is necessaryto describe but one? of them, as for examplethe support of the As shown in Fig. 2, theI bar 16 has rigidly securedto its righthand end alnetal strip eiitending upwardly from the end of,sa-id bar and to the upper end of this metal strip i a clampingbar 33ispivotally secured at 34.

The other end-ofv the bar 16 has pivotally secure-dtheretoat 35 a secondmetal stripV 36, tothe upper end of which is'pivotally connected at 37 acam 38, provided with an operating handle-39; The lefthand end vof thebar 33 is slotted to receive the metal strip 36 when the parts are inthe position. shown in Fig. 2. The' bar 33 is secured to the clampingplate 28 by means of tivo screws 40 which fit loosely in holes thereforformed through bar 33, and between the bar 33 and the clamping plate 28springs 41 are disposed whichA eXert a pressure upon the clamping plate28 in a-,direction away from.

the bar 33.

` Over the adjacent edge portions of each pair of table sectionsclamping strips and' 43 are disposed and, since these yare similar intheir construction and operation, it is necessary to describe butone ofthem as, for example, the' clamping strip 42. VAs more clearly shown inFig. 3, thestrip' 42 is held in position at one end by -a hook 44rigidly secured to the base and at the other end is a hook 45 pivotallysecured to the base at 46. The clampingstrip'is made of elastic orspring material, such as Wood or metal, and when free from restraint iscurved or bent from a straight linerfrom end to end, as shown in liig.5. In making these clamping strips fromY wood, I find it desirable 'tolsaw'them in the curved shape indicated so that they may'r'etainVtheir'ftendency to assume said curved position instead'of forming themby bending them from straight pieces of Wood since the latter would intinetend to straighten out and losev ,their effectiveness forthe'purpose ldesired. The strip 42 is provided with ahandle f- 46 formoving the lefthand end of the strip shown` in Fig. r3 to a positionpermitting'it to be'engagedby the'pvoted hook 45.

In using my machine, the'cams andthe pivoted metal strips are nio-vedto'their re-4 f leasing positi'on,`the clamping plates `are moved awayfrom the table sections by moving their supporting bars on their pivotalsupports and the clamping strips are removed by .disengaging them fromthe correspond ing..pivoted hooks. The strips of veneer 29, 30 and 31are then placed upon the table sections 11, 12 and 13 respectively withthe edges ofpsaid strips of veneeradjaccnt the openings between thetable sections. The clamping plates 26, 27 and 28 are then moved to theposition indicated in the drawings and secu-rely held in said positionsby means of the cams referred to against the resisting action of thesprings between the clamping plates and their supporting bars. Thescrews 19 and 25 are then turned to bring the inner edges of the stripsof veneer 31 and -29 closely against the edges of the strip of veneer30. With the strips of veneer in this position paper tape or equivalentinaterial as indicated at 47 is glued over the joints between the stripsofA Veneer, thus securely holding said strips of veneer with their edgesclosely together. The clamping strips 42 and 43 are then put in placeover the paper tapes as a precautionary measure to insure that the edgeportions of the strips of veneer shall be held in substantially thesaine plane during the drying of the glue holding the paper strips inplace and also that the paper tapes shall be securely held against theportions of the strips of veneer en aged thereby.

'o provide against the possibility of the stripsof 'veneer slipping onthe table Sections,`I find it desirable to provide the table-sectionswith roughened supporting surfaces or surfaces of -roughened material asindicated at 11, .12a and 13a. In practice I' find that strips ofsandpaper glued to the supporting surfacs of the table sections serveadmirably for this purpose, valthough any equivalent material may #beemployed for securing a high degree of frictional engagement between thestrips of veneer and the sections of the table, as for example strips ofsheet rubber.

When the glue or other adhesive material holding the lpaper take inplace has dried, the strips of veneer are removed from the machineandare held together as indicated in Fig. 6 with their acent edgessecurely engaging each other to make tight and perfect joints betweenthem. The strips of ve neer are then placed in the relative positionindicated in Fig. 7, which is permitted on account of the iexibility ofthe tape 47, and the edges may be glued after whichthe strips of veneerare moved into the same plane and as a'result of the manner in which thetape was applied to the strips the edges of the strips of `veneer are'again brought into close engagement with each other l holding devices,it is found that the joints between the strips of veneer are so perfectas to be scarcely discernible. f

While strips of veneer have been secured together heretofore by the useof paper tape and gluing, it has been extremely diflicult with themechanism employed to bring the edges of the strips of veneer closelyand firmly into engagement with each other be fore applying the` tapeand my machine greatly simplifies this operation by making itunnecessary that the strips of veneer shall be in close engagement witheach other when the clamping plates are brought into engagement withsaid strips of veneer in the machine, since the strips of veneer mayreadily and quickly be brought into close and -firm engagement .witheach other while the strips are clamped in the machine and as a resultthe strips of veneer may be secured together very effectively andquickly and with as high a degree of perfection as is permitted by thematerial of the veneer and the condition of the edges of the veneerstrips joined together.

i/Vhile I have shown my invention in the particular embodiment describedabove, it

will be understood that I do not limit myself to. this exactconstruction, as I may employ equivalents thereof known to the art atthe time of the filing of this application without departing from thescope of the appended claims.

What I claim is:

l. In a veneer joint setting machine, the combination of a base having aflat continuous upper surface, a first supporting bar extendinglongitudinally of the base and secured to the upper surface thereof, afirst table section wider than said bar and secured to the upper surfacethereof, a second bar similar to said first bar supported on the uppersurface of said base in substantially parallel relation to said firstbar, a second table section similar to said first table section securedto the upper surface of said second bar, two adjusting screws extendinglaterally and horizontally through the end portions of said bars, eachof said screws being in threaded engagement with one of Said bars,devices connecting each screw to the other bar and permitting rotationand preventing longitudinal motion of said screw relatively to saidother bar, a clamping plate for holding a veneer strip on the uppersurface of each table section, and a. clamping strip between saidclamping plates for holding the adjacent edge portions of said veneerstrips in engagement with the upper surface of said table sec tions. Y

2,- In a veneer joint setting machine, the combination of a base havinga flat continuous upper surface, a first supporting bar extendinglongitudinally of the base and se cured to the up er surface thereof, afirst second table section similar rto said first.

table section secured to the upper surface of said second bar, twoadjusting screws eX- tending laterally and horizontally through the endportions of said bars, each of said screws being in threaded engagementwith one of said bars, devices connecting each screw to the other barand permitting` rotation and preventing longitudinal motion of saidscrew relatively to `said other bar, a clamping plate for holding aveneer strip on the upper surface of each table section, and a clampingstrip between said clamping plates for holding the adjacent edgeportions of said veneer strips in engagement with the upper surface ofsaid table sections, said screws extending outwardly beyond the edge ofsaid base, and handles secured to the outer ends of said screws forrotating the saine.

3. In a veneer joint setting machine, thek tion secured to the uppersurface of said second bar, two adjusting screws extending laterally andhorizontally through the end portions of said bars, each of said screwsbeing in threaded engagement with one of said bars, devices connectingeach screw to the other bar and permitting rotation and preventinglongitudinal motion of said screw relatively to said other bar, aclamping plate for holding a veneer strip on thelupper surface of eachtable section, and a clamp' ing strip between said clamping plates forholding the adjacent edge portions of said veneer strips in engagementwith the upper surface of said table sections, said clamping strip beingof wood sawed in circular conformation, and devices for holding the endsof said strip against said veneer strips and thus holding said strip instraightened posi tion exerting pressure upon the adjacent edge portionsof said veneer strips.

. 4. In a veneer joint setting machine, the combination of a base`having a fiat continuous upper surface, two table sections supported onthe upper surface of said base in substantially the same plane, a firstone of 'said sections being rigidly secured to said said veneer stripsin engagement with the' upper surface of said table sections` 5. In aveneer joint setting machine, the combination of a base having a fiatcontinuous upper surface, two table sections supported on the uppersurface ofA said base in substantially the sameplane, a firs-t one ofsaid sections being -rigidly secured to said base and the other sectionbeing movable laterally upon said base relatively to said first section,means for moving said other section relatively to said first section, aclamping vplate for holding a veneer strip on the upper surface of eachtable section, and a clamping strip between said clamping plates forholding the adjacent edge portions of said veneer strips in engagementwith the upper surface of said table sections, said clamping strip beingof wood sawed in circular conformation, and devices for holding the endsof said strip against said veneer strips and thus holding said strip instraightened position exerting pressure upon the adjacent edgeportionsof said veneer strips.

In a veneer joint setting machine, the combination of a base having aflat continuous upper surface, a first supporting bar extendinglongitudinally of the base and secured to the upper surface thereof7 afirst table section wider than said bar and secured to the upper surfacethereof, a second bar similar to said first bar supported on the uppersurface of said base in substantially parallel relation to said firstbar on each side thereof, a second table section similar to said firsttable section secured to the upper surface of each of said second bars,two adjustin screws extending laterally and horizontalI-y through theend portions of each of said second bars and said first bar, each ofsaid screws being vin threaded engagement with one 0f said bars, adevice connecting each .screw to the other bar engaged by it andpermitting rotation and preventing longitudinal motion of said screwrelatively to said other bar, a clamping plate for holding a` veneerstrip on the upper surface of each table section, and a clamping stripbetween the central clamping plate and each of the other clamping platesfor holding the adjacent edge portions of said veneer stripsinengagement with the upper surface of said table sections.

7. In a veneer joint setting machine, the combination of a base having afiat continuous upper surface, a first supporting bar ex tendinglongitudinally of the base and secured to the upper surface thereof, afirst table section Wider than said bar and secured to the upper surfacethereof, a second bar similarto said first bar supported ou the uppersurface of said base in substantially parallel relation to said firstbar on each side thereof, a second table section similar to said firsttable section secured to the upper surface of each of said second bars,two adjusting screws extending laterally and horizontally through theend portions of each of said second bars and said first bar, each ofsaid screws being in threaded engagement with one' of said bars, aAdevice connecting each screw to the other bar engaged by it andpermitting rotation and preventing lon-v gitudinal motion of said screwrelatively to said other bar, a clamping plate for holding a veneerstrip on the upper surface of each table section, and a clamping stripbetween the central clamping plate and each of the other clamping platesfor holding the adjacent edge portions of said v'eneer strips inengagement with the upper surface of said table sections, said screwsextending outwardly beyond opposite edges of said base, and handlessecured to the outer ends of said screws for rotating thesame.

8. In a veneer joint setting machine, the combination of a base having afiat continuous upper surface, a first supporting bar eX- tendinglongitudinally of the base and secuiedto-the upper surface thereof, afirst table section wider than said bar and secured to the upper surfacethereof, a second bar similar to said first bar supported on the uppersurface of Said base in substantially parallel relation to said firstbar, a second table section similar to said first table section securedto the upper surface of said second bar, two adjusting screws extendinglaterally and horizontally through the end portions of said bars, eachof said screws being in threaded engagement with one of said bars,devices connecting each screw to the other bar and permitting rotationand preventing longitudinal motion of said screw relatively to saidother bar, and a clamping plate for holding a veneer strip on the uppersurface of each table section.

9. In a veneer joint setting machine, the combination of a base having aflat continun ous upper surface, a first supporting bar extendinglongitudinally of the base and secured to the upper surface thereof, afirst table section wider than said bar and secured to the upper surfacethereof, a second bar similar to said first bar supported on the uppersurface of said base in substantially parallel relation to said firstbar on each side thereof, a, second table section similar to said firsttable section secured to the upper surface of each of said second bars,two adjustin screws extendin laterally and horizontal y through the enortions of each of said second bars and sai first bar', each of saidscrews bein in threaded engagement with one of sai bars, a deviceconnecting each screw to the other bar engaged by it and ermittngrotation and preventing ongitu inal motion of said screw relatively to10 said other bar, and a clamping plate for holding a veneer strip onthe upper surface of each table section, said screws extendin outwardlybeyond opposite edges of said base; and handles secured to the outerends of said screws for rotating the same.

In Witness whereof, I hereunto subscribe n1y7name this 26th day ofNovember, A. D. 191

PAUL RECKOW.

copies o! tlm patent luy be obtained for ive cent: each. by addressing'the Gomminioner t hints, Wallington, D. 0."

